package com.freedom;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoRestTemplateCustomizer;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.Bean;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.security.oauth2.client.token.AccessTokenProviderChain;
import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsAccessTokenProvider;
import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider;
import org.springframework.security.oauth2.client.token.grant.implicit.ImplicitAccessTokenProvider;
import org.springframework.security.oauth2.client.token.grant.password.ResourceOwnerPasswordAccessTokenProvider;

@SpringBootApplication
@EnableZuulProxy
@EnableDiscoveryClient
public class ApiGatewayApplication {

    //@Bean
    //UserInfoRestTemplateCustomizer userInfoRestTemplateCustomizer(LoadBalancerInterceptor loadBalancerInterceptor) {
    //    return template -> {
    //        List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>();
    //        interceptors.add(loadBalancerInterceptor);
    //        AccessTokenProviderChain accessTokenProviderChain = Stream.of(
    //            new AuthorizationCodeAccessTokenProvider(),
    //            new ImplicitAccessTokenProvider(),
    //            new ResourceOwnerPasswordAccessTokenProvider(),
    //            new ClientCredentialsAccessTokenProvider()
    //        )
    //                .peek(tp -> tp.setInterceptors(interceptors)).collect(Collectors.collectingAndThen(Collectors.toList(), AccessTokenProviderChain::new));
    //
    //        template.setAccessTokenProvider(accessTokenProviderChain);
    //    };
    //}

    public static void main(String[] args) {
        SpringApplication.run(ApiGatewayApplication.class, args);
    }

}
